1 /* 2 * Copyright 2015 Rockchip Electronics Co. LTD 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __H265E_ENCTROPY_H__ 18 #define __H265E_ENCTROPY_H__ 19 20 #include "mpp_bitwrite.h" 21 22 typedef struct H265eContextModel { 23 RK_U8 m_state; ///< internal state variable 24 RK_U8 bBinsCoded; 25 } H265eContextModel_t; 26 27 typedef struct H265eCabacCtx { 28 MppWriteCtx *m_bitIf; 29 RK_U32 m_low; 30 RK_U32 m_range; 31 RK_U32 m_bufferedByte; 32 RK_S32 m_numBufferedBytes; 33 RK_S32 m_bitsLeft; 34 RK_U64 m_fracBits; 35 RK_U8 m_bIsCounter; 36 } H265eCabacCtx; 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 void h265e_cabac_init(H265eCabacCtx *cabac_ctx, MppWriteCtx * bitIf); 43 void h265e_reset_enctropy(void *slice_ctx); 44 void h265e_cabac_resetBits(H265eCabacCtx *cabac_ctx); 45 void h265e_cabac_encodeBin(H265eCabacCtx *cabac_ctx, H265eContextModel_t *ctxModel, RK_U32 binValue); 46 void h265e_cabac_encodeBinTrm(H265eCabacCtx *cabac_ctx, RK_U32 binValue); 47 void h265e_cabac_start(H265eCabacCtx *cabac_ctx); 48 void h265e_cabac_finish(H265eCabacCtx *cabac_ctx); 49 void h265e_cabac_flush(H265eCabacCtx *cabac_ctx); 50 51 #ifdef __cplusplus 52 } 53 #endif 54 55 #endif 56